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  • Google Maps Api v3 - getBounds is undefined

    - by Via Lactea
    Hi All, I'm switching from v2 to v3 google maps api and got a problem with gMap.getBounds() function. I need to get the bounds of my map after its initialization. Here is my javascript code: var gMap; $(document).ready( function() { var latlng = new google.maps.LatLng(55.755327, 37.622166); var myOptions = { zoom: 12, center: latlng, mapTypeId: google.maps.MapTypeId.ROADMAP }; gMap = new google.maps.Map(document.getElementById("GoogleMapControl"), myOptions); alert(gMap.getBounds()); So now it alerts me that gMap.getBounds() is undefined. I've tryed to get getBounds values in click event and it works fine for me, but I cannot get the same results in load map event. Also getBounds works fine while document is loading in Google Maps API v2, but it fails in V3. Could you please help me to solve this problem?

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  • Bottom button bar overlaps the last element of Listview!!

    - by elto
    I have a listview which is part of an Activity. I want user to have a choice for batch deleting the items in the listview, so when he chooses the corresponding option from the menu, every list item gets a checkbox next to it. When user clicks any checkbox, a button bar is to slide up from bottom (as in gmail app) and clicking delete button deletes the selected items, however clicking cancel button on the bar would uncheck all the checked items. This is my page layout.xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@android:color/transparent" > <FrameLayout android:layout_width="fill_parent" android:layout_height="fill_parent" > <LinearLayout android:id="@+id/list_area" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1" > <ListView android:id="@+id/mylist" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@android:color/transparent" android:drawSelectorOnTop="false" android:layout_weight="1" /> <TextView android:id="@+id/empty_list_message" android:layout_width="fill_parent" android:layout_height="wrap_content" android:textColor="#FFFFFF" android:layout_gravity="center_vertical|center_horizontal" android:text="@string/msg_for_emptyschd" android:layout_margin="14dip" android:layout_weight="1" /> </LinearLayout> <RelativeLayout android:id="@+id/bottom_action_bar" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/schedule_bottom_actionbar_border" android:layout_marginBottom="2dip" android:layout_gravity="bottom" android:visibility="gone" > <Button android:id="@+id/delete_selecteditems_button" android:text="Deleted Selected" android:layout_width="140dip" android:layout_height="40dip" android:layout_alignParentLeft="true" android:layout_marginLeft="3dip" android:layout_marginTop="3dip" /> <Button android:id="@+id/cancel_button" android:text="Cancel" android:layout_width="140dip" android:layout_height="40dip" android:layout_alignParentRight="true" android:layout_marginRight="3dip" android:layout_marginTop="3dip" /> </RelativeLayout> </FrameLayout> </LinearLayout> so far, I have got everything working except that when the bottom bar becomes visible upon checkbox selection, it overlaps the last element of the list. All other list items can be scrolled up, but you cant scroll up the very last item of the list, therefore user can not select that item if he intends to. Here is the screenshot of the overlap. I have tried using the listview footer option, but that appends the bar to the end of the list instead of keeping it fixed at the bottom of the screen. Is there a way I could "raise" the listview enough so that the overlap wont happen?? BTW, I have already tried adding the bottom-margin to the listview itself, or the LinearLayout wrapping the listview right before making the button-bar visible, but it introduces other bugs like clicking one checkbox checks some another checkbox in listview.

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  • zoom_changed only triggers once in google maps api version 3 using MVC

    - by fredrik
    Hi, I'm trying to use the MVC objects in google maps version 3. What I can't seem to figure out is why my zoom_changed method is only invoked once. When I first load the map the zoom_changed method is invoked. But not when I zoom on the map. function MarkerWidget (options) { this.setValues(options); this.set('zoom', this.map.zoom); var marker = new google.maps.Marker({ icon : this.icon, mouseOverIcon : this.mouseOverIcon, orgIcon : this.orgIcon }); marker.bindTo('map', this); marker.bindTo('position', this); google.maps.event.addListener(marker, 'mouseover', this.onmouseover); google.maps.event.addListener(marker, 'mouseout', this.onmouseout); } MarkerWidget.prototype = new google.maps.MVCObject(); MarkerWidget.prototype.zoom_changed = function () { $.log(this, new Date()); } Shouldn't the map object fire the zoom event and notify all object's that has "this.set('zoom', this.map.zoom)" ? ..fredrik

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  • Cancel zoom from dbclick event onmap in google maps version 3

    - by aleka
    I initiallize a map in my application like this: function doLoad() { var parnitha= new google.maps.LatLng(38.155428,23.718739); var myOptions = { zoom:16, mapTypeId: google.maps.MapTypeId.SATELLITE, center: parnitha, disableDefaultUI: true, navigationControl: true, scrollwheel: false, navigationControlOptions: { style: google.maps.NavigationControlStyle.SMALL, position: google.maps.ControlPosition.TOP_LEFT}, } map= new google.maps.Map(document.getElementById("map_canvas"), myOptions); }. With double click on the map, it making zoom and i don't want this, because i want to use dbClick event for other reason.Please help me to remove the default dbClick event on the map. Thanks a lot..

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  • Google tweets – Now search twitter archives using Google

    - by samsudeen
    Google has launched a Twitter archive service which allows you to  search tweets in real time as well as on its huge public archive (remember Twitter crossed 10 billionth tweet last month). The search results are displayed as tweets with twitter logo. To explore the twitter search go to Google.com homepage  and select   “Show options” on the search results page, then select “Updates.”.  The search is similar to the Google search with options to dig through the tweets by timeframe. You can explore results by zooming through a particular time range  or date. In addition to the time chart, it also displays the relative volume of an activity on Twitter about the topic. as you can see there is a spike about GSLV launch after 3 PM today.There is also a short cut link “Now” on the left corner which displays the latest results on the topics searched.The tweets also gets refreshed automatically.   Considering the huge volume of activity (50 million messages per day) on twitter, the archive is going to more and bigger. By providing such feature Google has once again proved it is way ahead of others in search Related Posts:None FoundJoin us on Facebook to read all our stories right inside your Facebook news feed.

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  • uninstall google chrome in fedora

    - by tbleckert
    Yesterday I installed Fedora 15 Beta with GNOME 3 - it works well. One problem though is that I installed Chrome 32-bit (which was wrong, should have been the 64-bit version) and now I can't uninstall it. I can't find it in Add/Remove Software, and I also can't install the correct version of Chrome because it complains about my other copy of Chrome. Any ideas how I can remove the existing copy and get the 64-bit version installed? Here's the message I get when trying to install: Test Transaction Errors: file /etc/cron.daily/google-chrome from install of google-chrome-stable-11.0.696.65-84435.x86_64 conflicts with file from package google-chrome-stable-11.0.696.65-84435.i386 file /opt/google/chrome/chrome from install of google-chrome-stable-11.0.696.65-84435.x86_64 conflicts with file from package google-chrome-stable-11.0.696.65-84435.i386 file /opt/google/chrome/chrome-sandbox from install of google-chrome-stable-11.0.696.65-84435.x86_64 conflicts with file from package google-chrome-stable-11.0.696.65-84435.i386 file /opt/google/chrome/libffmpegsumo.so from install of google-chrome-stable-11.0.696.65-84435.x86_64 conflicts with file from package google-chrome-stable-11.0.696.65-84435.i386 file /opt/google/chrome/libpdf.so from install of google-chrome-stable-11.0.696.65-84435.x86_64 conflicts with file from package google-chrome-stable-11.0.696.65-84435.i386 file /opt/google/chrome/libppGoogleNaClPluginChrome.so from install of google-chrome-stable-11.0.696.65-84435.x8...

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  • does google spreadsheets create forms?

    - by alexluvsdanielle
    after going to this URL: link text i noticed that it is powered by google docs. i didnt know that google docs make online forms as well. does google doc provide the option to make online forms? has anyone had experience doing this? what language are they using to make this thing so scalable?

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  • How to build Open JavaFX for Android.

    - by PictureCo
    Here's a short recipe for baking JavaFX for Android dalvik. We will need just a few ingredients but each one requires special care. So let's get down to the business.  SourcesThe first ingredient is an open JavaFX repository. This should be piece of cake. As always there's a catch. You probably know that dalvik is jdk6 compatible  and also that certain APIs are missing comparing to good old java vm from Oracle.  Fortunately there is a repository which is a backport of regular OpenJFX to jdk7 and going from jdk7 to jdk6 is possible. The first thing to do is to clone or download the repository from https://bitbucket.org/narya/jfx78. Main page of the project says "It works in some cases" so we will presume that it will work in most cases As I've said dalvik vm misses some APIs which would lead to a build failures. To get them use another compatibility repository which is available on GitHub https://github.com/robovm/robovm-jfx78-compat. Download the zip and unzip sources into jfx78/modules/base.We need also a javafx binary stubs. Use jfxrt.jar from jdk8.The last thing to download are freetype sources from http://freetype.org. These will be necessary for native font rendering. Toolchain setup I have to point out that these instructions were tested only on linux. I suppose they will work with minimal changes also on Mac OS. I also presume that you were able to build open JavaFX. That means all tools like ant, gradle, gcc and jdk8 have been installed and are working all right. In addition to this you will need to download and install jdk7, Android SDK and Android NDK for native code compilation.  Installing all of them will take some time. Don't forget to put them in your path. export ANDROID_SDK=/opt/android-sdk-linux export ANDROID_NDK=/opt/android-ndk-r9b export JAVA_HOME=/opt/jdk1.7.0 export PATH=$JAVA_HOME/bin:$ANDROID_SDK/tools:$ANDROID_SDK/platform-tools:$ANDROID_NDK FreetypeUnzip freetype release sources first. We will have to cross compile them for arm. Firstly we will create a standalone toolchain for cross compiling installed in ~/work/ndk-standalone-19. $ANDROID_NDK/build/tools/make-standalone-toolchain.sh  --platform=android-19 --install-dir=~/work/ndk-standalone-19 After the standalone toolchain has been created cross compile freetype with following script: export TOOLCHAIN=~/work/freetype/ndk-standalone-19 export PATH=$TOOLCHAIN/bin:$PATH export FREETYPE=`pwd` ./configure --host=arm-linux-androideabi --prefix=$FREETYPE/install --without-png --without-zlib --enable-shared sed -i 's/\-version\-info \$(version_info)/-avoid-version/' builds/unix/unix-cc.mk make make install It will compile and install freetype library into $FREETYPE/install. We will link to this install dir later on. It would be possible also to link openjfx font support dynamically against skia library available on Android which already contains freetype. It creates smaller result but can have compatibility problems. Patching Download patches javafx-android-compat.patch + android-tools.patch and patch jfx78 repository. I recommend to have look at patches. First one android-compat.patch updates openjfx build script, removes dependency on SharedSecret classes and updates LensLogger to remove dependency on jdk specific PlatformLogger. Second one android-tools.patch creates helper script in android-tools. The script helps to setup javaFX Android projects. Building Now is time to try the build. Run following script: JAVA_HOME=/opt/jdk1.7.0 JDK_HOME=/opt/jdk1.7.0 ANDROID_SDK=/opt/android-sdk-linux ANDROID_NDK=/opt/android-ndk-r9b PATH=$JAVA_HOME/bin:$ANDROID_SDK/tools:$ANDROID_SDK/platform-tools:$ANDROID_NDK:$PATH gradle -PDEBUG -PDALVIK_VM=true -PBINARY_STUB=~/work/binary_stub/linux/rt/lib/ext/jfxrt.jar \ -PFREETYPE_DIR=~/work/freetype/install -PCOMPILE_TARGETS=android If everything went all right the output is in build/android-sdk Create first JavaFX Android project Use gradle script int android-tools. The script sets the project structure for you.   Following command creates Android HelloWorld project which links to a freshly built javafx runtime and to a HelloWorld application. NAME is a name of Android project. DIR where to create our first project. PACKAGE is package name required by Android. It has nothing to do with a packaging of javafx application. JFX_SDK points to our recently built runtime. JFX_APP points to dist directory of javafx application. (where all application jars sit) JFX_MAIN is fully qualified name of a main class. gradle -PDEBUG -PDIR=/home/user/work -PNAME=HelloWorld -PPACKAGE=com.helloworld \ -PJFX_SDK=/home/user/work/jfx78/build/android-sdk -PJFX_APP=/home/user/NetBeansProjects/HelloWorld/dist \ -PJFX_MAIN=com.helloworld.HelloWorld createProject Now cd to the created project and use it like any other android project. ant clean, debug, uninstall, installd will work. I haven't tried it from any IDE Eclipse nor Netbeans. Special thanks to Stefan Fuchs and Daniel Zwolenski for the repositories used in this blog post.

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  • Google I/O 2010 - Google Charts Toolkit

    Google I/O 2010 - Google Charts Toolkit Google I/O 2010 - Google Charts Toolkit: Google's new unified approach for creating dynamic charts on the web Google APIs 201 Michael Fink, Amit Weinstein Google Charts Toolkit is Google's unified approach for creating charts on the web. It provides a rich gallery spanning from pie charts to interactive heat-maps and from organizational trees to motion charts. The toolkit lets developers choose between JavaScript based client-side rendering and image based server-side rendering. We will present the relative strengths of these two approaches, and unveil the future visual design of Google Charts. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 9 0 ratings Time: 56:50 More in Science & Technology

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  • [Video] Android Gingerbread Features Walkthrough

    - by Kavitha
    Google recently released Android 2.3 (aka Gingerbread) smartphone OS. Guys at Phone Arena released a video demo of the new features and enhancements of Gingerbread OS.Check and enjoy the Android Gingerbread walk trough video. This article titled,[Video] Android Gingerbread Features Walkthrough, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • Blank New Tab Quick-Fix for Google Chrome

    - by Asian Angel
    If you have other browsers that you use set to “about:blank” for new tabs then you probably feel rather frustrated with Google Chrome’s default New Tab Page. The Blank New Tab extension is the perfect solution to that problem. Before Unless you have a “speed dial/special page” extension installed you are stuck with the default new tab page in Chrome every single time you open a new tab. What if you do not like the default new tab page or “speed dial/special page” setups? After If you are someone who prefers to have a blank page as a new tab then you will love this extension. Once you have it installed you can click to your heart’s content on the “New Tab Button” and see nothing but blank goodness. Sometimes less is more… Note: There are no options to bother with. Conclusion If you prefer a blank page when opening a new tab then the Blank New Tab extension is just what you have been waiting for. Links Download the Blank New Tab extension (Google Chrome Extensions) Similar Articles Productive Geek Tips Subscribe to RSS Feeds in Chrome with a Single ClickAccess Wolfram Alpha Search in Google ChromeFind Similar Websites in Google ChromeHow to Make Google Chrome Your Default BrowserView Maps and Get Directions in Google Chrome TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Need Help with Your Home Network? Awesome Lyrics Finder for Winamp & Windows Media Player Download Videos from Hulu Pixels invade Manhattan Convert PDF files to ePub to read on your iPad Hide Your Confidential Files Inside Images

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  • Installing Lubuntu on to Android tablet and switching os in between

    - by user1702061
    I would like to install Lubuntu onto my tablet, as it seems more lightweight than ubuntu. However, it seems there are only images for Windows/ Mac? For Android devices, what image shall I download? I've also found an article about installing Ubuntu on Android phone. And by installing VNC, it seems that one could "switch" from OS to OS on the phone, i.e. I could be viewing the Ubuntu OS on the phone via a VNC viewer, and closing the viewer gives me back the Android OS. My questions are: 1) What ubuntu/lubuntu image (windows?mac?) shall I download in order to get this done? 2) My ultimate goal is to run some windows programs on a Android tablet. I am planning install a lubuntu os and then wine... what will be the minimum hardware requirement in order to do this? Thank you very much!

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  • Google Introduces Android Gingerbread and Nexus S Phone

    - by Gopinath
    Google today officially announced the availability of next version of Android(version 2.3) nicknamed “Gingerbread”. This is a long awaited upgrade to it’s smartphone platform from Google and below are the highlights of new features: Rich multimedia – including support for VP8 and WebM video and new audio effects. Support for front-facing cameras, SIP/VoIP and Near Field Communication (NFC). Enhancements for game developers, including new sensor types. You can read more about the release at Google blog post and watch this embedded video. Samsung Nexus S – The First Gingerbread Android Phone Samsung’s Nexus S is the first Android phone to be released with Gingerbread operation system. This is a phone that was designed with direct inputs from Google team and comes with a clean install of Android OS – no additional software layers from third party OEMs or carriers. Visit Nexus S site for more details This article titled,Google Introduces Android Gingerbread and Nexus S Phone, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • Android - passing data between Activities

    - by Bill Osuch
    (To follow along with this, you should understand the basics of starting new activities: Link ) The easiest way to pass data from one activity to another is to create your own custom bundle and pass it to your new class. First, create two new activities called Search and SearchResults (make sure you add the second one you create to the AndroidManifest.xml file!), and create xml layout files for each. Search's file should look like this: <?xml version="1.0" encoding="utf-8"?> <LinearLayout     xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical">     <TextView          android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:text="Name:"/>     <EditText                android:id="@+id/edittext"         android:layout_width="fill_parent"         android:layout_height="wrap_content"/>     <TextView          android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:text="ID Number:"/>     <EditText                android:id="@+id/edittext2"                android:layout_width="fill_parent"                android:layout_height="wrap_content"/>     <Button           android:id="@+id/btnSearch"          android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:text="Search" /> </LinearLayout> and SearchResult's should look like this: <?xml version="1.0" encoding="utf-8"?> <LinearLayout     xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical">     <TextView          android:id="@+id/txtName"         android:layout_width="fill_parent"         android:layout_height="wrap_content"/>     <TextView          android:id="@+id/txtState"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:text="No data"/> </LinearLayout> Next, we'll override the OnCreate method of Search: @Override public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.search);     Button search = (Button) findViewById(R.id.btnSearch);     search.setOnClickListener(new View.OnClickListener() {         public void onClick(View view) {                           Intent intent = new Intent(Search.this, SearchResults.class);              Bundle b = new Bundle();                           EditText txt1 = (EditText) findViewById(R.id.edittext);             EditText txt2 = (EditText) findViewById(R.id.edittext2);                                      b.putString("name", txt1.getText().toString());             b.putInt("state", Integer.parseInt(txt2.getText().toString()));                              //Add the set of extended data to the intent and start it             intent.putExtras(b);             startActivity(intent);          }     }); } This is very similar to the previous example, except here we're creating our own bundle, adding some key/value pairs to it, and adding it to the intent. Now, to retrieve the data, we just need to grab the Bundle that was passed to the new Activity and extract our values from it: @Override public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.search_results);     Bundle b = getIntent().getExtras();     int value = b.getInt("state", 0);     String name = b.getString("name");             TextView vw1 = (TextView) findViewById(R.id.txtName);     TextView vw2 = (TextView) findViewById(R.id.txtState);             vw1.setText("Name: " + name);     vw2.setText("State: " + String.valueOf(value)); }

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  • Android SDK vs NDK in oppurtunities and career scope

    - by Gopal S Akshintala
    Hi I am very much interested in Android Mobile Developement and I am equally comfortable with Java and C/C++. I would like to build my career in Android. So I am confused on to which way to go, wheather as Android SDK developer or NDK developer. Please advice me pros n cons of both and also the career scope and oppurtunities in both(With factors like excitement in Job, Payroll, competetion, Openings in Job Market, career growth etc).Thanks...:)

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  • How do people deal with Android fragmentation?

    - by Bill
    I've spent the past few years working on iOS apps, and I'm now giving some serious consideration to creating an Android port of one of my apps. I'm sure that complaints about fragmentation are a frustrating cliche to experienced Android programmers, but as an iOS programmer, I'm quite honestly overwhelmed by the number of configurations and devices that my app might end up running on. There are literally thousands of Android devices in the wild, but I know there are successful Android developers in the world and I know they're not testing or developing for thousands of different devices. So how can a relatively small company deal with fragmentation? Is it possible to pick the five or six most popular devices, focus on those and prevent the app from being installed on any other devices? Are there any other strategies for practically dealing with the number of different configurations an app will face?

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  • Easily Close All Tabs in Google Chrome

    - by Asian Angel
    Do you find yourself with a lot of tabs open but dread closing all but one manually? Now you can close all of your tabs with a single click, and have just one ready to go with the Close all Tabs extension. Before We all find ourselves with a lot of tabs open sooner or later. That is not so bad until we realize that we need to close all of them and get back to work. A person could open a new tab and manually close the rest or close the entire window and restart Chrome. But a single click solution would be a lot more convenient. After There it is…the single click solution. Just click the Toolbar Button and BOOM! One fresh window with a single new tab page showing. Now if you could only take the rest of the day off… Conclusion The Close all Tabs extension may not be something that everyone would use, but if you are tired of manually closing all of those tabs then you will definitely like it. Links Download the Close all Tabs extension (Google Chrome Extensions) Similar Articles Productive Geek Tips Focused New Tabs Quick-Fix for Google ChromeVisually Browse Through Your Open Tabs in Google ChromeMake Google Chrome Open with Pinned TabsStupid Geek Tricks: Compare Your Browser’s Memory Usage with Google ChromeEasily Control a Large Amount of Tabs in Google Chrome TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Acronis Online Backup DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows Fun with 47 charts and graphs Tomorrow is Mother’s Day Check the Average Speed of YouTube Videos You’ve Watched OutlookStatView Scans and Displays General Usage Statistics How to Add Exceptions to the Windows Firewall Office 2010 reviewed in depth by Ed Bott

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  • Link Google Profiles? [closed]

    - by Jon H
    I have two Google accounts. One GMail account that I use for personal stuff and one hosted domain that I use for business. My Google Profile is linked to my Gmail account - is it possible to associate it with my business account? I'm prompted to ask by the new 'Social Search' feature from Google, which while great, can only pick up contacts from one account at a time.

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  • How can I Transfer Google Chrome's Data and Settings to another Google Account?

    - by Thedijje
    I use Google Chrome and I have 100s of bookmarks, history, search preferences, search engines, extensions, and apps installed. I want to have a new Google account, and I need to move everything from my current account to the new one. I did sign in to another Chrome and transferred my bookmarks using the Export/Import option. How can I transfer all the Google Chrome data, saved usernames and passwords, and everything else to the new account?

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  • How to fix notifyDataSetChanged/ListView problems in dynamic Adapter wrapper Android

    - by ipaterson
    Summary: Trying to dynamically add heading rows to a ListView via a custom adapter wrapper. ListView is having trouble keeping the scroll position in sync. Runnable demo project provided. I would like to dynamically add items to a list based on the values in a CursorAdapter, several positions ahead of what the user is currently viewing. To do this, I have an adapter that wraps the CursorAdapter and keeps the new content indexed in a SparseArray. The ListView needs to be updated when items are added to the custom adapter, but I have met a lot of pitfalls trying to get that to work and would love some advice. The demo project can be downloaded here: http://dl.dropbox.com/u/15334423/DynamicSectionedList.zip In the demo, the headings are added dynamically by looking ahead 10 places to find the correct position where the list items switch to the next letter. Each implementation of notifyDataSetChanged has problems as described: Demo 1 This demo shows the importance of notifyDataSetChanged(). On clicking anything, the app will crash. This is due to some sanity checking in ListView... mItemCount != adapter.getItemCount(). Moral is, we need to notify the list that data has changed. Demo 2 The natural next step is to notify the ListView of changes when changes occur. Unfortunately, doing so while the ListView is scrolling firmly breaks all touch interaction until the app switches out of touch mode. You will need to "fling scroll" far enough to generate new headings in order to notice this. Tapping the screen will not cause the scroll to stop, and once stopped none of the list items will be clickable. This is due to some if (!mDataChanged) { /* do very important stuff */ } code in AbsListView.onTouchEvent(). Demo 3 To fix this, Demo 3 introduces a pendingChanges flag and the custom Adapter gains a notifyDataSetChangedIfNeeded() which can be called by the ListView once it has entered a "safe" state for changes. The first point where changes must be notified is in ListView.layoutChildren(), so I overrode that method to first notify of changes if needed, then call through. Fling past at least one heading then click a list item. This doesn't quite work right, though I'm not totally sure why. Tapping or selecting an item with the keyboard/trackball causes the list to refresh without properly syncing the old position. It scrolls to the top of the list which is not acceptable. Demo 4 The scroll problem in Demo 3 can be conquered, at least in touch mode. By adding a call to notifyDataSetChangedIfNeeded() on touch down, the data change happens to take place at such a time that all touch interaction works as expected and the list position is properly synced. However, I can't find an analog for that when the device is not in touch mode, not to mention the fact that it definitely seems like a hack. The list almost always scrolls back to the top, I can't find out what causes it to occasionally maintain the correct position. Since Android is fighting me at each step of the way, I feel like there should be a better approach. Please try the demo, if any fixes can be applied to get it working that would be great! Many thanks to anyone who can look into this, hopefully if we can get the code working it will be useful for others trying to accomplish the same optimization for lists with headings.

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  • Android exception i don't understand after loading webpage in a webview

    - by DixieFlatline
    I have a webview that loads a webpage. I also have a reload button. Sometimes it works but sometimes it crashes when i hit reload and i get this exceptions: 05-14 10:08:33.958: ERROR/WindowManager(918): Activity com.poslji.gor.Uvod has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@435da698 that was originally added here 05-14 10:08:33.958: ERROR/WindowManager(918): android.view.WindowLeaked: Activity com.poslji.gor.Uvod has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@435da698 that was originally added here 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewRoot.(ViewRoot.java:217) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.Window$LocalWindowManager.addView(Window.java:392) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.app.Dialog.show(Dialog.java:231) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.app.ProgressDialog.show(ProgressDialog.java:107) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.app.ProgressDialog.show(ProgressDialog.java:90) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.poslji.gor.Odgovori$2.onClick(Odgovori.java:120) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.View.performClick(View.java:2179) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.View.onTouchEvent(View.java:3828) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.widget.TextView.onTouchEvent(TextView.java:6307) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.View.dispatchTouchEvent(View.java:3368) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1752) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1206) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.app.Activity.dispatchTouchEvent(Activity.java:1997) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1736) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1752) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1206) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.app.Activity.dispatchTouchEvent(Activity.java:1997) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1736) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.view.ViewRoot.handleMessage(ViewRoot.java:1761) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.os.Handler.dispatchMessage(Handler.java:99) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.os.Looper.loop(Looper.java:123) 05-14 10:08:33.958: ERROR/WindowManager(918): at android.app.ActivityThread.main(ActivityThread.java:3948) 05-14 10:08:33.958: ERROR/WindowManager(918): at java.lang.reflect.Method.invokeNative(Native Method) 05-14 10:08:33.958: ERROR/WindowManager(918): at java.lang.reflect.Method.invoke(Method.java:521) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782) 05-14 10:08:33.958: ERROR/WindowManager(918): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540) 05-14 10:08:33.958: ERROR/WindowManager(918): at dalvik.system.NativeStart.main(Native Method) 05-14 10:08:36.768: ERROR/AndroidRuntime(918): Uncaught handler: thread main exiting due to uncaught exception 05-14 10:08:36.778: ERROR/AndroidRuntime(918): java.lang.IllegalArgumentException: View not attached to window manager 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:356) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:201) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.view.Window$LocalWindowManager.removeView(Window.java:400) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.app.Dialog.dismissDialog(Dialog.java:268) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.app.Dialog.access$000(Dialog.java:69) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.app.Dialog$1.run(Dialog.java:103) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.app.Dialog.dismiss(Dialog.java:252) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at com.poslji.gor.Odgovori$HelloWebViewClient.onPageFinished(Odgovori.java:180) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:225) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.os.Handler.dispatchMessage(Handler.java:99) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.os.Looper.loop(Looper.java:123) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at android.app.ActivityThread.main(ActivityThread.java:3948) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at java.lang.reflect.Method.invokeNative(Native Method) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at java.lang.reflect.Method.invoke(Method.java:521) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540) 05-14 10:08:36.778: ERROR/AndroidRuntime(918): at dalvik.system.NativeStart.main(Native Method) What is going wrong here?

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  • ASP.Net Web API in Visual Studio 2010

    - by sreejukg
    Recently for one of my project, it was necessary to create couple of services. In the past I was using WCF, since my Services are going to be utilized through HTTP, I was thinking of ASP.Net web API. So I decided to create a Web API project. Now the real issue is that ASP.Net Web API launched after Visual Studio 2010 and I had to use ASP.Net web API in VS 2010 itself. By default there is no template available for Web API in Visual Studio 2010. Microsoft has made available an update that installs ASP.Net MVC 4 with web API in Visual Studio 2010. You can find the update from the below url. http://www.microsoft.com/en-us/download/details.aspx?id=30683 Though the update denotes ASP.Net MVC 4, this also includes ASP.Net Web API. Download the installation media and start the installer. As usual for any update, you need to agree on terms and conditions. The installation starts straight away, once you clicked the Install button. If everything goes ok, you will see the success message. Now open Visual Studio 2010, you can see ASP.Net MVC 4 Project template is available for you. Now you can create ASP.Net Web API project using Visual Studio 2010. When you create a new ASP.Net MVC 4 project, you can choose the Web API template. Further reading http://www.asp.net/web-api/overview/getting-started-with-aspnet-web-api/tutorial-your-first-web-api http://www.asp.net/mvc/mvc4

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  • Android WebView not loading a JavaScript file, but Android Browser loads it fine.

    - by Justin
    I'm writing an application which connects to a back office site. The backoffice site contains a whole slew of JavaScript functions, at least 100 times the average site. Unfortunately it does not load them, and causes much of the functionality to not work properly. So I am running a test. I put a page out on my server which loads the FireBugLite javascript text. Its a lot of javascript and perfect to test and see if the Android WebView will load it. The WebView loads nothing, but the browser loads the Firebug Icon. What on earth would make the difference, why can it run in the browser and not in my WebView? Any suggestions. More background information, in order to get the stinking backoffice application available on a Droid (or any other platform except windows) I needed to trick the bakcoffice application to believe what's accessing the website is Internet Explorer. I do this by modifying the WebView User Agent. Also for this application I've slimmed my landing page, so I could give you the source to offer me aid. package ksc.myKMB; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.graphics.Bitmap; import android.os.Bundle; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.Window; import android.webkit.WebChromeClient; import android.webkit.WebView; import android.webkit.WebSettings; import android.webkit.WebViewClient; import android.widget.Toast; public class myKMB extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); /** Performs base set up */ /** Create a Activity of this Activity, IE myProcess */ myProcess = this; /*** Create global objects and web browsing objects */ HideDialogOnce = true; webview = new WebView(this) { }; webChromeClient = new WebChromeClient() { public void onProgressChanged(WebView view, int progress) { // Activities and WebViews measure progress with different scales. // The progress meter will automatically disappear when we reach 100% myProcess.setProgress((progress * 100)); //CreateMessage("Progress is : " + progress); } }; webViewClient = new WebViewClient() { public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { Toast.makeText(myProcess, MessageBegText + description + MessageEndText, Toast.LENGTH_SHORT).show(); } public void onPageFinished (WebView view, String url) { /** Hide dialog */ try { // loadingDialog.dismiss(); } finally { } //myProcess.setProgress(1000); /** Fon't show the dialog while I'm performing fixes */ //HideDialogOnce = true; view.loadUrl("javascript:document.getElementById('JTRANS011').style.visibility='visible';"); } public void onPageStarted(WebView view, String url, Bitmap favicon) { if (HideDialogOnce == false) { //loadingDialog = ProgressDialog.show(myProcess, "", // "One moment, the page is laoding...", true); } else { //HideDialogOnce = true; } } }; getWindow().requestFeature(Window.FEATURE_PROGRESS); webview.setWebChromeClient(webChromeClient); webview.setWebViewClient(webViewClient); setContentView(webview); /** Load the Keynote Browser Settings */ LoadSettings(); webview.loadUrl(LandingPage); } /** Get Menu */ @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.menu, menu); return true; } /** an item gets pushed */ @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { // We have only one menu option case R.id.quit: System.exit(0); break; case R.id.back: webview.goBack(); case R.id.refresh: webview.reload(); case R.id.info: //IncludeJavascript(""); } return true; } /** Begin Globals */ public WebView webview; public WebChromeClient webChromeClient; public WebViewClient webViewClient; public ProgressDialog loadingDialog; public Boolean HideDialogOnce; public Activity myProcess; public String OverideUserAgent_IE = "Mozilla/5.0 (Windows; MSIE 6.0; Android 1.6; en-US) AppleWebKit/525.10+ (KHTML, like Gecko) Version/3.0.4 Safari/523.12.2 myKMB/1.0"; public String LandingPage = "http://kscserver.com/main-leap-slim.html"; public String MessageBegText = "Problem making a connection, Details: "; public String MessageEndText = " For Support Call: (xxx) xxx - xxxx."; public void LoadSettings() { webview.getSettings().setUserAgentString(OverideUserAgent_IE); webview.getSettings().setJavaScriptEnabled(true); webview.getSettings().setBuiltInZoomControls(true); webview.getSettings().setSupportZoom(true); } /** Creates a message alert dialog */ public void CreateMessage(String message) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage(message) .setCancelable(true) .setNegativeButton("Close", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }); AlertDialog alert = builder.create(); alert.show(); } } My Application is running in the background, and as you can see no Firebug in the lower right hand corner. However the browser (the emulator on top) has the same page but shows the firebug. What am I doing wrong? I'm assuming its either not enough memory allocated to the application, process power allocation, or a physical memory thing. I can't tell, all I know is the results are strange. I get the same thing form my android device, the application shows no firebug but the browser shows the firebug.

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  • Google Maps API v3 not working

    - by user1496322
    I've been banging my head on the wall after going through the documentation on this several times! I can't seem to get past the API error to get the map to appear on my site. I am getting the following error message from the web page where I want the map to be displayed: ~~~~~~~~~~~ Google has disabled use of the Maps API for this application. The provided key is not a valid Google API Key, or it is not authorized for the Google Maps Javascript API v3 on this site. If you are the owner of this application, you can learn about obtaining a valid key here: https://developers.google.com/maps/documentation/javascript/tutorial#Obtaining_Key ~~~~~~~~~~~ I have (several times now) gone into my account and 1) enabled the Maps v3 API service. 2) Generated a new API key. and 3) added my allowed referrers to the key. (both www.domain.com and domain.com URLs) I have the following added to the head of the web page: < script src="http://maps.googleapis.com/maps/api/js?sensor=false&key=MY_API_KEY_HERE" type="text/JavaScript" language="JavaScript" And... I have the following javascript function that executes when a link is clicked on the page: alert("viewMap()"); var map = new GMap3(document.getElementById("map_canvas")); var geocoder = new GClientGeocoder(); var address = "1600 Amphitheatre Parkway, Mountain View"; alert("Calling getLatLng ..."); geocoder.getLatLng(address, function(point) { var latitude = point.y; var longitude = point.x; // do something with the lat lng alert("Lat:"+latitude+" - Lng:"+longitude); }); The initial 'viewMap' alert is displayed and then is followed by the 'Google has disbled use...' error message. The error console is also showing 'GMap3 is not defined'. Can anyone please assist with showing me the errors of my ways?!?!? Thank you in advance for any help you can provide. -Dennis

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  • Android mapView ItemizedOverlay setFocus does not work properly

    - by Gaks
    Calling setFocus(null) on the ItemizedOverlay does not 'unfocus' current marker. According to the documentation: ... If the Item is not found, this is a no-op. You can also pass null to remove focus. Here's my code: MapItemizedOverlay public class MapItemizedOverlay extends ItemizedOverlay<OverlayItem> { private ArrayList<OverlayItem> items = new ArrayList<OverlayItem>(); public MapItemizedOverlay(Drawable defaultMarker) { super(defaultMarker); } public void addOverlay(OverlayItem overlay) { items.add(overlay); populate(); } @Override protected OverlayItem createItem(int i) { return items.get(i); } @Override public int size() { return items.size(); } } Creating map overlay and one marker: StateListDrawable youIcon = (StateListDrawable)getResources().getDrawable(R.drawable.marker_icon); int width = youIcon.getIntrinsicWidth(); int height = youIcon.getIntrinsicHeight(); youIcon.setBounds(-13, 0-height, -13+width, 0); GeoPoint location = new GeoPoint(40800816,-74122009); MapItemizedOverlay overlay = new MapItemizedOverlay(youIcon); OverlayItem item = new OverlayItem(location, "title", "snippet"); overlay.addOverlay(item); mapView.getOverlays().add(overlay); The R.drawable.marker_icon is defined as follows: <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_focused="true" android:drawable="@drawable/marker_selected" /> <item android:state_selected="true" android:drawable="@drawable/marker_selected" /> <item android:drawable="@drawable/marker_normal" /> </selector> Now, to test the setFocus() behavior I put the button on the activity window, with the following onClick listener: Button focusBtn = (Button)findViewById(R.id.focusbtn); focusBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { for(Overlay ov : mapView.getOverlays()) { if(ov.getClass().getSimpleName().equals("MapItemizedOverlay") == true) { MapItemizedOverlay miv = (MapItemizedOverlay)ov; if(miv.getFocus() == null) miv.setFocus(miv.getItem(0)); else miv.setFocus(null); break; } } mapView.invalidate(); } }); The expected behavior is: clicking on the button toggles marker selection. It works only once - clicking it for the first time selects the marker, clicking it again does not de-select the marker. The most weird thing about it is that after calling setFocus(null), getFocus() also returns null - like the overlay has no focused item (I debugged it). But even after calling mapView.invalidate() the marker is still drawn in 'selected'(focused) state.

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